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Total Motorcycle

You are here: Home --- New 2008 Models --- 2008 Yamaha Motorcycle Models

2008 Yamaha YZ250 (2-Stroke)
Back to 2008 Yamaha Motorcycle Index Page

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2008 Yamaha YZ250 (2-Stroke)
2008 Yamaha YZ250 (2-Stroke)

2008 Yamaha YZ250 (2-Stroke)
2008 Yamaha YZ250 (2-Stroke)

2008 Yamaha YZ250 (2-Stroke)
2008 Yamaha YZ250 (2-Stroke)

2008 Yamaha YZ250 (2-Stroke)
2008 Yamaha YZ250 (2-Stroke)

2008 Yamaha YZ250 (2-Stroke)
2008 Yamaha YZ250 (2-Stroke)

2008 Yamaha YZ250 (2-Stroke)
2008 Yamaha YZ250 (2-Stroke)

- 2008 Yamaha YZ250 (2-Stroke)

2008 Yamaha YZ250 (2-Stroke)

Just like golf... fewer strokes are a good thing.

Last of a disappearing breed? Not a Yamaha! Choice is a good thing and the more choices the better. Perhaps a 4-stroke MX bike is not the machine for you. Well, for 2008 we have taken some of the best features of our 4-stroke YZ line and have added them to the YZ250, so it maintains its competitive edge. A new wave style front rotor is squeezed by a new compact twin piston caliper for reduced weight and excellent stopping power.

The 2008 Yamaha YZ250 delivers the latest in power, response and lightning quick handling thanks to continual refinements - super light, super responsive, super choice.

Let's run down the list of great features found on the 2008 YZ250. Beta titanium shock spring, lightweight "ti" footpegs, aluminium frame and swingarm, Pro Taper handlebars, 48mm adjustable inverted fork, quick adjust clutch … the list is impressive.

For 2008 we have added even more sought after goodies like wave style discs front and rear, a new super compact front caliper, revised 48mm fork … heck we even revised the front brake lever.

 

FEATURES:

Liquid-cooled, 249cc, piston-reed-valve-inducted, 2-stroke engine is lightweight and compact. Its reputation for exceptionally broad, hard-hitting powerband continues for 2008.

The cylinder feature a ceramic composite coating which insures uniform heat dissipation, reduced friction and a longer service life.

YPVS power valve system features a total of three slides (one main and two auxiliary slides) which provides the benefits of both solid, low rpm power delivery and a strong top-end punch. The YPVS system varies the exhaust port height and timing based on engine rpm. The valves are also designed to match the curvature of the cylinder resulting in a strong seal, thereby providing increased power delivery.

Keihin PWK38 carburetor with power jet and throttle position sensor (TPS) ensures precise fuel/air mixing and extra-crisp throttle response throughout the powerband. The needle jet is changed for improved low to mid rpm power delivery.

Special-design, 4-petal, carbon fiber reeds provide great throttle response and engine performance across the entire RPM range.

Smooth-shifting, 5-speed, close-ratio transmission with heavy-duty, multi-plate clutch ensures optimal hook-up for outstanding acceleration and corner-exiting power. Transmission shafts utilize involute splines for smooth, positive shifting.

Quick-access, outer clutch cover provides allows for fast, easy clutch maintenance

Digital CD ignition system delivers precise spark and monitors engine speed to ensure optimal timing for faster, stronger response during hard acceleration.

Washable, dual-stage, foam air filter reduces maintenance costs.

Large-capacity, dual radiators feature a 10-row core with 4 louvers to deliver maximum cooling efficiency.

Computer designed expansion chamber provides maximum engine performance while the lightweight, aluminum silencer is rebuildable so performance can be maintained at the optimum level and noise levels can be controlled.

Trick, works-style clutch lever features a race-spec "barrel adjuster" for on-the-fly adjustability.

Lightweight, aluminum, semi-double-cradle style frame. The obvious benefit of an aluminum frame is a significant reduction in overall machine weight. Yamaha has maintained the semi-double cradle design because it offers an excellent balance between stiff lateral and torsion rigidity while offering more controlled flex in the longitudinal plane. This frame design offers the ideal "stiffness balance" which means it offers the flexibility of a steel frame with the light weight of an aluminum frame. This frame is made from a unique mix of castings, forgings and extrusions that provide stiffness where it is required and flexibility in other areas. The result is the world's lightest aluminum MX frame, which provides excellent handling, good ride quality, excellent stability and responsive cornering performance.

Removable rear subframe is constructed of square-section, lightweight aluminum pipe. Detachable design allows easy access when servicing rear suspension components.

Lightweight, tapered, aluminum swingarm is produced using "hydro forming", a special forming method that uses high pressure water to form shapes.

Cast aluminum upper triple clamp and forged lower triple clamp provide both lightweight and strength for fast, easy handling.

The fork pitch (or separating width between the tubes) has been optimized for lightweight, responsive handling.

Adjustable handlebar mounts allow the handlebars to be moved 10mm rearward if desired.

Revised "speed sensitive" 48mm, adjustable, inverted, Kayaba cartridge fork features a twin-chamber design. The twin chamber design means the damper unit is in a separate structure which prevents aerated fork oil from entering the inner damper assembly and degrading its damping abilities. Since the inner damper is pressurized, it also eliminates bubbles forming in the oil. The speeds sensitive design mean the damping force is controlled by the piston speed in the fork.

The balance between the inner and outer fork tubes has been optimized for 2008, while the Kashima coating on the pressure tank and the piston rod reduce friction for smoother suspension performance. The cylinder diameter is 24mm for excellent primary cushioning while low friction oil seals provide reduced stiction for a smoother stroke.

The revised 48mm KYB fork also features a change to the outer fork tube. While the outer fork tube is optimized in terms of thickness and rigidity for superb handling, the area around the fork seal has been modified for improved suspension performance and reduced weight.

This fork also features a Transfer Control Valve (TCV). The TCV enhances the damping force of the inner damper from mid stroke to full stroke and improves bottoming characteristics. The benefit of TCV is more precise control throughout the full stroke range.

The left and right axle mounting brackets are new for 2008. They are more compact and lighter in total weight than last year.

"Kashima coating" is applied to the fork tubes to reduce friction for smoother suspension performance. Front wheel travel is 300mm (11.8").

Front fork adjustments include: 20-way compression damping and 20-way rebound damping. Optional fork springs are available through Genuine Yamaha parts.

Revised design "wrap-around" plastic fork protectors provide excellent protection from dirt, mud and stone chips. The "self-supporting" design reduces friction for smoother fork operation. The lower axle brackets have been revised to accommodate the new protectors.

Revised Monocross link rear suspension system features a fully adjustable, Kayaba, piggyback shock which provides 315mm (12.4") of wheel travel and features separate adjusters for high- and low-speed compression damping. Adjustments include: spring preload, 20-way rebound damping, 20-way low-speed compression damping and 2 turns of high speed compression damping. The damper rod diameter is 18mm in diameter, while Kashima coating is used in the shock body and sub tank to reduce friction and improve suspension performance during a long moto. The 2008 Kayaba shock utilizes a full rebound oil lock system for excellent suspension function and great ride quality.

Super lightweight, "Beta" titanium shock spring. This spring reduces weight by over 500 grams versus a conventional steel spring. A reduction in "unsprung" weight causes a dramatic effect on suspension performance. This titanium spring provides outstanding strength, and durability, combined with reduced weight.

All new 250mm floating front disc brake features a new "wave" style rotor (disc) which reduces weight and improves styling.

All new compact Nissin twin piston front caliper utilizes lightweight aluminum pistons and reduces weight by 27%. The braking performance is excellent with great feel and control. This is the same caliper as our 4-stroke YZ-F models.

Revised "shorty" style front brake lever features a revision to the adjustment range.

245mm rear disc brake with single piston caliper uses an integrated master cylinder (fluid reservoir is integrated into the top of the master cylinder) for strong stopping power with excellent feel and control.

All new "wave" style rear rotor (disc) reduces weight by 12% over last year. It also adds a special styling highlight too.

The rear brake caliper features a rugged plastic caliper protector, while the lower edge of the disc is protected by a lower disc guard.

Specially designed "Sun Star" rear sprocket increases the contact area between the sprocket and chain rollers, thereby reducing the load on the chain and increasing the service life of both chain and sprocket.

Lightweight, 21" front and 19" rear Excel rims provide exceptional durability and help reduce unsprung weight for optimal suspension performance and handling.

Specially designed rear wheel collar is tapered to allow for faster, easier wheel removal installation.

Pro Taper handlebars with reinforcing crossbar and foam pad provide excellent durability and reduced weight.

Premium Dunlop knobby tires offer excellent race-spec traction.

"Flat-design" seat features multi density foam that provides good initial softness / comfort and then increases the firmness as more pressure is applied. The "pebble" or "gripper" finish on the top and side surfaces provides excellent rider grip and durability.

Seat, handlebar and slim design fuel tank ergonomics provide excellent freedom of movement for the rider.

Large fuel cap and filler hole ensures easy opening and fast, hassle-free refueling.

Lightweight, wide titanium footpegs provide excellent grip and ground clearance.

Cleated, rear brake lever and folding shift lever tip offer superb grip and exceptional durability.

Stainless steel, inner clutch cable provides excellent strength and long life.

Repackable exhaust silencer means a rider can maintain optimum engine performance and reduced noise levels.

 


SPECIFICATIONS USA - 2008 Yamaha YZ250 (2-Stroke):
MSRP* $6,399 (Team Yamaha Blue/White)


Engine
Type 249cc liquid-cooled 2-stroke; reed-valve inducted

Bore x Stroke 66.4 x 72.0mm

Compression Ratio 9.2 – 10.9:1

Carburetion PWK38S X 1

Ignition CDI

Transmission Constant-mesh 5-speed; multiplate wet clutch

Final Drive Chain Drive


Chassis
Suspension/Front Speed-Sensitive System inverted fork; fully adjustable, 11.8-in travel

Suspension/Rear Fully adjustable single shock, 12.4-in travel

Brakes/Front Hydraulic single disc brake, 250mm

Brakes/Rear Hydraulic single disc brake, 245mm

Tires/Front 80/100-21-51M

Tires/Rear 110/90-19-62M


Dimensions
Length 85.7 in

Width 32.6 in

Height 51.4 in

Seat Height 39.1 in

Wheelbase 58.3 in

Ground Clearance 15.0 in

Dry Weight 212 lb

Fuel Capacity 2.1 gal


Other
Warranty 30 Day (Limited Factory Warranty)

 


SPECIFICATIONS Canada - 2008 Yamaha YZ250 (2-Stroke):
Suggested Retail $7,899 CDN

Engine 2-stroke, liquid-cooled, reed-valve, single
Displacement 249 cc
Bore and Stroke 66.4 x 72 mm
Compression Ratio 9.2~10.9:1
Maximum Torque 4.84 kg-m (35 ft-lbs.) @ 7,500 rpm
Fuel Delivery Keihin PWK38S
Ignition CDI
Transmission 5-speed
Final Drive Chain


Suspension (Front) Adjustable 48 mm inverted fork; 300 mm (11.8") travel
Suspension (Rear) Fully adjustable link Monocross; 315 mm (12.4") travel
Brakes (Front) 250 mm floating disc
Brakes (Rear) 245 mm disc
Tires (Front) 80/100-21
Tires (Rear) 110/90-19


Length 2,184 mm (86")
Width 827 mm (32.6'')
Height 1,309 mm (51.5'')
Wheelbase 1,481 mm (58.3'')
Ground Clearance 385 mm (15.1")
Seat Height 997 mm (39.3'')
Dry Weight 96 kg (211.2 lbs)
Fuel Capacity 8 litres (1.8 imp. gallons)
Colour(s) Yamaha Blue

Specifications and features are subject to change


 

 

 

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